























Genesis is the first dual action anti-fall haircare range: FOR ALL WOMEN, IN ALL LIFESTYLES, WITH ALL DEGREE OF HAIR FALL.
Powered with a cocktail of highly efficient ingredients to instantly strengthen and thicken the hair fiber for an immediate fuller look with more fiber strength, more fiber retention* and -84% less hair-fall**.
*Clinical study, 99 people, 6 weeks use.
**hair-fall due to breakage. Instrumental test on Bain Nutri-fortifiant + Masque Reconstituant + Ampoule/Sérum Aminexil.
HOW DOES GENESIS WORK?
A double action for your client:
Instantly: PROTECTS AGAINST DAILY EXTERNAL AGGRESSOR AND ANTIOXIDES thanks to Ginger roots and Edelweiss native cells.
Long Term: STOP HAIR-FALL FORTIFIES HAIR ANCHORAGE & RETENTION AND REDUCE HAIR-FALL FROM THE ROOTS thanks to Aminexil.
Sérum Anti-Chute Fortifiant benefits:
- Silicone-free.
- Strengthens hair day after day.
- 97% less hair fall due to breakage from brushing*.
*System of Bain Hydra-Fortifiant + Fondant Renforcateur + Sérum Fortifiant vs Non-Conditioning Shampoo.
WHO IS IT FOR?
Genesis targets every woman with hair fall need that would efficient, convenient and peasurable with :
- Instant result of hair care
- Efficacy of anti hair fall solutions
Activate scalp with the Serum Anti-Chute Fortifiant.
Use once daily in the morning or before going to bed during a 6-week period :
Step 1: Take 1 pipette until the mark.
Step 2: Apply 3 drops by section and repeat on the whole scalp with 4 doses.
Step 3: Massage gently, do not rinse.
Learn more on Access
Ask more information about this productGenesis Sérum Anti-Chute Fortifiant is enriched with GINGER ROOT, EDELWEISS NATIVE CELLS and AMINEXIL.
GINGER ROOTS: Known for its ability to protect against daily external aggressors.
EDELWEISS NATIVE CELLS: Capable to resist the most extreme conditions and is known in skincare for its antioxidants. It also has power & collagen-preserving properties.
AMINEXIL: Helps hair to anchor more solidly into the scalp & prevents collagen from hardening around hair follicles to reduce hair-fall from the roots.
Ella L
51.743050703E12 27/03/2025
Best product ever
[This review was collected as part of a promotion.] I simply love this product and cannot live without it anymore!
Originally posted on kerastase-usa.com
AuroraM
51.743170408E12 28/03/2025
Amazing
This saved my hair after pregnancy. I was struggling with postpartum hair loss and used the set with the shampoo to try it out and had 0 hopes that it would work!! But it did an amazing job
Originally posted on kerastase-usa.com
Sammyq
51.743076808E12 27/03/2025
Talidu
51.742760008E12 23/03/2025
Very refreshing
This was a gift for my mother, she love it! Every day using the product!
Originally posted on kerastase-usa.com
Sayli b
51.742697906E12 22/03/2025
Best
Best hair growth serum in the world. It reduced my hairfall in 3 weeks of consistent use. I use it only twice a week
Originally posted on kerastase-usa.com
Maria8678
51.742505309E12 20/03/2025
Excellent
I use it on daily basis. Makes my hair soft. Also it has reduced my hair breakage
Originally posted on kerastase-usa.com
Anonymous
51.742594654E12 21/03/2025
Très bon produit
Très bon produit, mes cheveux ont cessé de tomber, ils sont rendu très hydratant et souple , c’est un miracle je suis rendu accro merci
Originally posted on kerastase.ca
Eunika
51.742394608E12 19/03/2025
my favorite
I have bought this , but it is always out of stock, they have an issue on creating this product, I love the smell and I wish the out of stock would end!
Originally posted on kerastase-usa.com
User45
51.742394608E12 19/03/2025
Best hair growth serum
Best serum! Works well on fine hair type. Worth for the price.
Originally posted on kerastase-usa.com
Monisapphire
51.742393729E12 19/03/2025
Love it
Best product helps stop fallout feels refreshing on the scalp
Originally posted on kerastase-usa.com
Clara Tran
51.74222631E12 17/03/2025
I love it so much
[This review was collected as part of a promotion.] “I’ve stopped using all other shampoos since I started using this one. My hair always smells great, and the serum helps my hair grow faster.
Originally posted on kerastase-usa.com
Batia G
51.742335207E12 18/03/2025
Effective
[This review was collected as part of a promotion.] Used it after every wash for couple of weeks and helped with hair loss
Originally posted on kerastase-usa.com
luners
51.742335207E12 18/03/2025
soo good!
I’ve been using this and notice that my hair has been much stronger. I’ve also noticed less fall out.
Originally posted on kerastase-usa.com
Caroline22
31.742325394E12 18/03/2025
A voir.. si il y a des résultats
Je test le produit depuis seulement 1 semaine..
Mais pour le moment je peux dire qu'il graisse mes cheveux (j'ai les cheveux mixtes), et cela n'aide vraiment pas.
De plus.. j'imagine la vitesse à laquelle le flacon va se vider.. Un flacon ne servira pas pour la cure de 6 semaines.
Originally posted on kerastase.fr
Thehouseofariannis
51.74231361E12 18/03/2025
The best product
[This review was collected as part of a promotion.] The Kérastase Genesis Serum Fortifiant is a great investment for those experiencing hair fall due to breakage. With continued use, it visibly improves hair strength and scalp health. Ideal for anyone looking to fortify their hair and prevent excessive shedding.
Originally posted on kerastase-usa.com
AdrianaC27
51.742267706E12 17/03/2025
Hair is so soft and full!!
This serum is so delicious the smell alone is so good and it leaves your hair feeling full yet soft and healthy all that the same time!
Originally posted on kerastase-usa.com
Longasshair
21.742324671E12 18/03/2025
not worth the price or wait
If you can’t keep it stocked there’s no point. I love this product but the issue is that it constantly sells out, and they charge sooo much for such a small amount. I am currently looking for an alternative as there are many different ones available. I love a brand that recognizes a need and fulfills it, it just feels like this company takes advantage. I like consistency and this brand fails at that.
Originally posted on kerastase-usa.com
Reply from Consumer Care Center
Hello there, thank you for reaching out about Serum Fortifiant Hair Serum. Please know we truly value your honest feedback and all these comments will be shared with the appropriate team for consideration.
StephC628
51.742219112E12 17/03/2025
The holy grail for scalp serum
My hair has always been on the thinner side, but even more so post partum. This helps save my hair and doesn't leave behind any grease or residue.
Originally posted on kerastase-usa.com
S Renee
51.742049912E12 15/03/2025
Amazing hair serum
[This review was collected as part of a promotion.] I started using this a couple of years ago. It is amazing and it does work. I continue using it for maintenance now. You definitely need to try this if you have thinning hair
Originally posted on kerastase-usa.com
B from IA
51.742219112E12 17/03/2025
Seems to be working
I really like this product, I can see new growth and can see it's working.
Originally posted on kerastase-usa.com
Avery Singer
51.741742105E12 11/03/2025
Great product
[This review was collected as part of a promotion.] So so good! Love this product. Have bought it multiple times
Originally posted on kerastase-usa.com
Tabatha
51.741647608E12 10/03/2025
Hair Saver!
Before using this serum, I lost tons of hair every time I touched it. Brushing, washing, or styling always left me with handfuls of fall out. I noticed a difference in my hair after the first two weeks of using this product and now I'm on bottle number three and use it three times a week instead of everything. The last time I washed my hair, I lost a strand. ONE STRAND. It was amazing.
Originally posted on kerastase-usa.com
Angela Hayward
51.741708818E12 11/03/2025
Won’t live without this
Life changing ..
Will never go without this product !
Smell is the most amazing ever
Originally posted on kerastase-usa.com
Alexis1235
51.741708818E12 11/03/2025
Very nice
[This review was collected as part of a promotion.] This product doesn’t make my hair feel greasy. My hair is softer after using it
Originally posted on kerastase-usa.com
JohannaCS
51.741708817E12 11/03/2025
Amazing serum
Light weight, non greasy and hair loss has improved significantly
Originally posted on kerastase-usa.com
Mia Girl
51.741708817E12 11/03/2025
My hair was so damaged
My hair was severely damaged due to over bleaching, and this product has really brought it back to normal soft, not breaking and repairing my hair
Originally posted on kerastase-usa.com
Anna Ss
21.741709916E12 11/03/2025
Overpowering smell, I’m not sure it’s doing much
[This review was collected as part of a promotion.] Easy to put on but the smell is too strong and I haven’t noticed much of a change within a month. Plus the product is done within a month so it’s a bit too pricey to keep using.
Originally posted on kerastase-usa.com
Reply from Consumer Care Center
Hello Anna, Thanks for giving our Serum Fortifiant Hair Serum a try. We are sorry that you did not get the result that you expected. Consumer feedback like yours is extremely helpful, as it allows us the opportunity to improve our products and services. All these comments will be shared with the appropriate teams.
Eli Cajiao
51.741619713E12 10/03/2025
Great product
My hair feels so soft. I recommend! You won't regret!
Originally posted on kerastase-usa.com
Caaaaa
51.741573805E12 09/03/2025
Great serum
The serum has really helped with hair breakage for someone who is in their early 50s due to hormones and coloring my hair for decades. It makes your hair very shiny and smooth as well. The smell is a bit potent and is quite floral however, if you like that, then that’s a plus
Originally posted on kerastase-usa.com
Anonymous
51.741313708E12 06/03/2025
Great hair serum
I love this product it has helped my hair tremendously
Originally posted on kerastase-usa.com
Mrs hair
51.741448713E12 08/03/2025
Not hreasy
[This review was collected as part of a promotion.] Love the smell of this product, doesn’t leave a greasy residue.
Originally posted on kerastase-usa.com
Adri scm
41.74127141E12 06/03/2025
Smells so good!
Worth it. I am trying it for the first month and it seems that it will work
Originally posted on kerastase-usa.com
Lexip1234
51.741247109E12 06/03/2025
My favorite ever
I’ve used this for years! Despite the price, I’ll never stop!
Originally posted on kerastase-usa.com
rashi1
41.741219215E12 05/03/2025
Will repurchase!
I have only been using this for 1 month, but I can see a difference in my hair! It is best to apply before bed.
Originally posted on kerastase-usa.com
Poppadop
51.741387511E12 07/03/2025
New Baby Hairs after one month!
[This review was collected as part of a promotion.] My daughter loves the hair serum. We purchased it to see if it would help with some hair loss she was experiencing and within a month of using it she's already seeing new little hairs around her hairline coming in. She's thrilled and has signed up for this to be a repeat order.
Originally posted on kerastase-usa.com
Mari9
51.741365486E12 07/03/2025
Love this product!
I definitely recommend this product and anything Kerastase! I did feel the tingling sensation a few times but this is my third bottle and I no longer get that feeling but most importantly my hair loss has significantly improved! Barely any at all
Originally posted on kerastase.ca
Michma
51.741095913E12 04/03/2025
Serum Review
I have used this prodcut consistently for a few weeks and my fallout is noticeably lower. I also love the scent of this product
Originally posted on kerastase-usa.com
Laci0876
51.741292111E12 06/03/2025
The proof is in the pudding…
This stuff works wonders. Very expensive in my opinion and will run out fast if using the recommended doses, BUT I have seen incredible results from using for about 2/3 weeks steady. I started pulling clumps out of my hair showering, or bruising and shedding all over my clothes daily, but this has almost completely stopped using this. Does not make my hair oily at all. Would recommend
Originally posted on kerastase-usa.com
LizATL
51.741035608E12 03/03/2025
My best friend
This is amazing and I run to buy it again when my bottle is nearing the end. It definitely reduces hair fall.
Originally posted on kerastase-usa.com
Anonymous
51.741184112E12 05/03/2025
Smells Amazing
Still using for growth but i love this stuff… time will tell
Originally posted on kerastase-usa.com
Sara H in WI
51.740958207E12 02/03/2025
Magic in a bottle
This stuff is like magic! I’ve been using it steadily for about a month now and can definitely tell a difference. My hair feels a little thicker, less fallout in the shower, and much softer! Best part? It doesn’t make my hair feel greasy or heavy!!
Originally posted on kerastase-usa.com
Maisie
51.741177812E12 05/03/2025
Love the Hair Serum!
I truly notice a difference in the strength of my hair when using this serum and I have a lot less hair loss and breakage. Would highly recommend and definitely worth the price!!
Originally posted on kerastase-usa.com
Scarlin
51.740847509E12 01/03/2025
My hair don’t fall any more
[This review was collected as part of a promotion.] Great product make my hair so shine and soft I would buy it again
Originally posted on kerastase-usa.com
emarie2025
51.74069811E12 27/02/2025
Miracle Product
It has helped my hair so much. I've really noticed a difference in the amount of fall out and my hair just feels and looks healthier. Smells nice but strong but I like it.
Originally posted on kerastase-usa.com
Kim Chasar
51.740668414E12 27/02/2025
Forever serum
[This review was collected as part of a promotion.] This serum has changed everything for my hair! Worth every penny
Originally posted on kerastase-usa.com
Noor ahmed
51.740564909E12 26/02/2025
100/100
I love it my favorite this my second bottle. Less shedding. Recommend
Originally posted on kerastase-usa.com
Seniami
51.740525306E12 25/02/2025
Hair Serum
[This review was collected as part of a promotion.] This is first time that I bought it and never disappointed. This is second serum that I using everyday and smell good.
Originally posted on kerastase-usa.com
Khayat
51.741575897E12 09/03/2025
Very good i like it Very good i like it
[This review was collected as part of a promotion.] Very good i like it Very good i like it Very good i like it Very good i like it
Originally posted on kerastase-usa.com
Laurel M
51.740676508E12 27/02/2025
I was skeptical….
I was skeptical only because anytime I put a serum on my scalp it feels like I need to was my hair!! It grosses me out. Not this product. It’s light and refreshing and feels like a cool clean vitamin scalp shower!!! Love this product!!!
Originally posted on kerastase-usa.com
Shaylie
51.7408704E12 01/03/2025
GAME CHANGER!!
I started using this serum over a month ago and I have noticed such a difference in the texture of my hair. It’s softer and it flows! It doesn’t make my hair feel heavy or my scalp feel heavy! It’s a game changer for hair growth and overall health!
Originally posted on kerastase-usa.com
Danimcarr
51.74042091E12 24/02/2025
Really works
Hair shed has been reduced to nearly nothing! Such an amazing product
Originally posted on kerastase-usa.com
AllieCat2
51.740373206E12 24/02/2025
This stuff is AMAZING!
My hairstylist used this on my hair after a visit and I fell in love with this serum. It really does the job of strengthening the roots. It smells amazing too! Clearly it is amazing as it flies off of the salon shelf and the website, as it is frequently sold out.
Originally posted on kerastase-usa.com
Maryel
51.740521352E12 25/02/2025
Perfecto
De las mejores inversiones que pude hacer en mi cabello. Me encanta como ha controlado la caída y me ha crecido nuevo cabello. Tengo hipotiroidismo y resistencia a la insulina por lo que tener un cabello sano ha sido complicado. Este producto me ha ayudado incluso con mi cabello decolorado. Me encantó el peoducto
Originally posted on kerastase-usa.com
Olivia Michele
51.740445209E12 24/02/2025
Incredible results!
Incredible! Have been using for a few weeks and my hair appears stronger and less breakage.
Originally posted on kerastase-usa.com
Ashleyc8777
51.740445209E12 24/02/2025
Really good!
[This review was collected as part of a promotion.] I could notice a difference very quickly. It goes on very wet but then dries and kind of gives me volume.
Originally posted on kerastase-usa.com
Belmis
51.740249909E12 22/02/2025
Excellent
[This review was collected as part of a promotion.] I have noticed less hair loss when washing my hair and it does not leave my hair sticky when I apply it.
Originally posted on kerastase-usa.com
maiamm
51.740240919E12 22/02/2025
BUY!!
[This review was collected as part of a promotion.] Already have bought my second bottle. So much less hair fall out.
Originally posted on kerastase-usa.com
Alejavalepin
51.740240007E12 22/02/2025
Es espectacular
[This review was collected as part of a promotion.] Yo vivo fascinada con estos productos y este, aunque solo lo he utilizado una vez ha sido maravilloso. Mil recomendado
Originally posted on kerastase-usa.com
Ally25
51.740406535E12 24/02/2025
Bhavchari
51.740405613E12 24/02/2025
The best product
Hands down, the best hair serum ever. I wish it came in a bigger bottle, I can't stop using it, love the smell of it too!
Originally posted on kerastase-usa.com
Twilight
51.740406535E12 24/02/2025
Love the scent
I recently just bought this because I saw it all over my fyp on TikTok and so far I really enjoy it. The smell is pretty strong but it’s a tolerable scent, I can’t really give a proper review yet saying it works since I just started using it but I will say I did notice my hair falling less.
Originally posted on kerastase-usa.com
Zee Kurtbedin
51.740405613E12 24/02/2025
It works for me.
My friend recommend me to get it. I’ve started having so much hair fall out and was getting worried. I’ve ordered fortfiant serum and started using it daily at night for 2 weeks now along with vitamin E and hair oiling and definitely seeing results. My hair got stronger and shedding went down to normal not bunch of it like it use too.
Originally posted on kerastase-usa.com
cherrypiec
31.740520372E12 25/02/2025
we will see
I will update my review once I've used for six weeks. I have high hopes because I love this line. downside is it REEKS like after shave
Originally posted on kerastase-usa.com
Reply from Consumer Care Center
Hello Cherrypiec, We appreciate your honest feedback on Serum Fortifiant Hair Serum. We are sorry to hear you dislike the fragrance. We are always looking for ways to improve our products and services. Your feedback will be passed along to others in our company for consideration.
Star Butterfly
51.740229214E12 22/02/2025
Works! But runs out quick
[This review was collected as part of a promotion.] I really love this serum! It works and is effective, I just ran out of it so quick! I used it with the directions of everyday, but I recommend using it every wash day to make the bottle last longer! It also smells amazing and I can smell it throughout the day! Not too strong but fragrant and it doesn’t leave your hair oily!
Originally posted on kerastase-usa.com
alex23
41.740182405E12 21/02/2025
First impression
I’ve been using for only 2 weeks but I really like the serum. It smells nice, feels very soothing in the scalp, and doesn’t leave a greasy finish which is a huge plus because my hair is very fine and oily. I haven’t seen any major results yet since I started using it only recently but so far I like it.
Originally posted on kerastase-usa.com
SickaSicko
51.740171607E12 21/02/2025
Holy grail
This serum is amazing! It makes my hair soft and my hair doesn’t fall out anymore. Their products are all that I use. I’ve notice major hair growth.
Originally posted on kerastase-usa.com
LauBrnst
51.740090605E12 20/02/2025
Excellent product
I’ve been using this product for a month, and you can definitely see the difference with new baby hairs. Plus, the smell is amazing.
Originally posted on kerastase-usa.com
Carllycar
51.739887218E12 18/02/2025
Genesis in a bottle
My biggest concern is how much I shred! I shred hairballs of hair everytime I brush my hair and finally made the investment to purchase this bottle! It has significantly strengthened my hair to reduce my hair balls into more subtle strands of hair!
Originally posted on kerastase-usa.com
Sab95
51.739859325E12 18/02/2025
Simple et efficace !
J’ai acheté ce produit suite à une perte de cheveux dû à la saison, l’utilisation est récente mais je vois déjà que je perds moins de cheveux. Le produit ne rend pas le cheveux gras, s’absorbe rapidement et laisse une odeur très agréable.
Originally posted on kerastase.fr
Anonymous
51.740053713E12 20/02/2025
Worth the investment
My hair is stronger and softer after only a few weeks.
Originally posted on kerastase-usa.com
Em2525
51.739853907E12 17/02/2025
Amazing product
[This review was collected as part of a promotion.] I have used this product for over a year now and have repurchased several times. I can’t imagine this product not being part of my hair routine. I can tell such a difference in the way my hair looks and feels. 10/10
Originally posted on kerastase-usa.com
Fran W
51.739850307E12 17/02/2025
Stops breakage!
This has changes my hair in only 2 weeks! I have serious breakage from years of bleaching. Every time I brushed my hair it was snapping off. I have noticed that my hair is not breaking off! I use I dropper filled to the line every night and it leaves no residue. You can use on dry or damp hair. The smell is a little strong but fades by morning time. Will definitely be repurchasing and using consistently on my hair health journey!
Originally posted on kerastase-usa.com
Stephtones
51.740018607E12 19/02/2025
Best hair serum
I was having a lot hair loss and this serum helped me to bring back my hair to life. Now I can’t live without
Originally posted on kerastase-usa.com
Marianna Araujo
51.739850307E12 17/02/2025
“Game-Changer for Soft, Healthy Hair!”
I’ve been using this hair product for two weeks, and the difference is amazing! My hair feels incredibly soft, looks healthier, and has a noticeable shine. It’s lightweight, smells great, and doesn’t leave any greasy residue. Definitely a must-have for anyone looking to improve their hair’s texture and strength!
Originally posted on kerastase-usa.com
Molly K
51.739837705E12 17/02/2025
A new staple
Love this serum. Feels great, smells great, and seems to be really working. Already repurchased
Originally posted on kerastase-usa.com
Imogen
41.740010508E12 19/02/2025
Did indeed stop my breakage
I ordered this as I saw a lot of positive content about it online. I had really bad breakage and fall out. I read the instructions, it didn’t really say how much to use, it just said to apply it to the scalp once a day. When I opened the bottle, I saw the dropper had a line on it, indicating almost like, a “serving” amount, however - how many was I supposed to put on my scalp each time? I did see that this product was supposed to be used over a 6 week period, so it’s supposed to last a while. I started out using wayyy too much product, and went through like, 1/3 of my bottle in my first week of having it. I recommend using 1 dropper (product up to the line) per day if it is to last you the full 6 weeks. That said, the product did what it promises! My brittle, lifeless, frizzy, fried hair became so much softer, and the fall out decreased dramatically like, overnight. My hair is doing a lot better now. I did get the 8hr Magic Night Serum with it, and these two products have helped my hair tremendously.
Originally posted on kerastase-usa.com
D in Irvine
41.739974535E12 19/02/2025
Almost Perfect
[This review was collected as part of a promotion.] The smell of this product is amazing I feel like it makes your hair feel nice but I also feel there is an alcohol element that is also very drying.
Originally posted on kerastase-usa.com
Evy123
51.73991871E12 18/02/2025
My hair stop falling and feels thicker :)
Best product ever will continue buying , my hair feels stronger
Originally posted on kerastase-usa.com
Cam cam
51.739731511E12 16/02/2025
Product works
I noticed less fall out in my hair when brushing it
Originally posted on kerastase-usa.com
Tanjum
51.739730617E12 16/02/2025
Absolutely magic
I need this product in subscription. I hate how it’s been sold out😭😭😭
Bring it back but please don’t mess with the formula, which is literally my biggest fear.
Originally posted on kerastase-usa.com
Anna05
31.739912551E12 18/02/2025
So so
My friend recommended this product to me, so I decided to try it. However, it didn’t really make a difference for me. I used it for a while and finished two bottles to give it enough time to work. It has a nice fragrance and makes your hair look good, but it didn’t solve my hair breakage and hair fall issues.
Originally posted on kerastase-usa.com
Reply from Consumer Care Center
Hi Anna05, We appreciate your comments about our Serum Fortifiant Hair Serum. We are sorry to hear that it did not fully meet your expectations. As consumers ourselves, we do understand how disappointing that can be. We will be passing your comments along. Thanks for giving it a try!
Ana Riv
51.739715315E12 16/02/2025
Best hair care
Love this for my hair. Made such a difference. Recommend
Originally posted on kerastase-usa.com
Jenn Cman
51.739758505E12 16/02/2025
Best ever
Absolutely love this serum, definitely have seen improvement!
Originally posted on kerastase-usa.com
Lisa 26
11.739917392E12 18/02/2025
Did not work...
I purchaed this to help srengthn my hair that had breakage and it did not work. On the contrary - my hair starting falling out and breaking even more.
Originally posted on kerastase-usa.com
Reply from Consumer Care Center
Hello Lisa 26, We are sorry to hear about the experience you had with Serum Fortifiant Hair Serum. We want to speak with you directly about it. Please give us a call at 877-748-8357 M-F 9:00 am – 5:00 pm ET for assistance and provide reference 39806776.
Mparikh
51.739739611E12 16/02/2025
Parikh
[This review was collected as part of a promotion.] Absolutely love this hair serum! It tames my frizz, adds shine, and makes my hair feel silky smooth. Definitely must have.
Originally posted on kerastase-usa.com
Anonymous
51.739729711E12 16/02/2025
Great Hair Serum
[This review was collected as part of a promotion.] Non greasy & great serum. Hope to see results in coming weeks
Originally posted on kerastase-usa.com
Wendy9893
31.739550084E12 14/02/2025
Dont really notify any changes
[This review was collected as part of a promotion.] I almost finish a whole bottle and don't really notify any changes, not improving not getting worse so I'm not sure how it really works
Originally posted on kerastase-usa.com
Reply from Consumer Care Center
Hi there! Thank you for reaching out about our Serum Fortifiant Hair Serum. We appreciate you finishing a whole bottle and sharing that you didn't notice any significant changes, either positive or negative. It's helpful to know that you're unsure how the product worked for you. We value your opinion!
Maricel25
41.739520911E12 14/02/2025
Still trying it out
[This review was collected as part of a promotion.] So far I'm really happy with my results, this is my second bottle and already can see some new hairs growing, will keep using it consistently and hopefully will give me more results as I've been struggling with hair loss since my teen years.
Originally posted on kerastase-usa.com
Anonymous
51.74004561E12 20/02/2025
Perfect for hair growth
Highly recommended for who have problem that hair lose that’s work really good you will see the results after 2 week and this is my 4bottle I hair grow a lot. I used it 4-5time a week after I wash my hair apply on the spot that your hair lose and messages 1mn when hair wet or dry the smell so amazing make you feel fresh. I love it. Perfect for who want hair grow and thick hair.
Originally posted on kerastase-usa.com
Laaaay
51.739679304E12 15/02/2025
Nice smell and big
[This review was collected as part of a promotion.] I was looking for something that would help me with my hair cause I lost so much hair
Originally posted on kerastase-usa.com
Kels0203
51.739544313E12 14/02/2025
Great for scalp
I don’t mind the fragrance but ever since I started using this, I noticed that there is lesser hairfall when I brush my hair or take a shower. I’ve been using it for 3 months now..
Originally posted on kerastase-usa.com
Kiamali
51.739379612E12 12/02/2025
The best product I have ever used
[This review was collected as part of a promotion.] In the first pose my hair stopped falling out , I loved
Originally posted on kerastase-usa.com
mysticmissouri
21.739674805E12 15/02/2025
OVERHYPED
[This review was collected as part of a promotion.] TikTok made me buy it. I really wanted to like it—this is my second bottle. I’ve been using it as recommended, but I haven’t seen any benefits. On top of that, it caused breakouts on my scalp.
Originally posted on kerastase-usa.com
Reply from Consumer Care Center
We are sorry to hear about the experience you had with Serum Fortifiant Hair Serum. We would like to speak with you directly about it. Please give us a call @877-254-9949 M-F 9:00 am – 5:30 pm ET for assistance and provide the reference # 39762868. Looking forward to speaking with you. It would be helpful if you could have the product available when you call.
Myma
21.739361653E12 12/02/2025
Déçue, je me tourne vers ce produit sujette à une perte de cheveux liée à l'âge.
J'ai le cheveu frisé et je constate malheureusement dans un premier temps que ce sérum me rend les cheveux très secs donc à terme je doute de son efficacité, je pense même arrêter le traitement avant la fin du traitement.
Je mets 2 étoiles pour son odeur, sa texture et qu'il est possible qu'il fonctionne sur d'autres natures de cheveux et que Kérastase reste logiquement une bonne marque, je vais cependant rester sur une huile moins onéreuse.
Originally posted on kerastase.fr
RachDB
51.739338209E12 12/02/2025
Amazing Product
I bought this product after reading reviews and feedback from others. I am impressed with the results. I am not surprised this product sells out. As described, it has reduced my hair shedding, in just a few weeks. I love the smell and results. This is a must have product for me moving forward.
Originally posted on kerastase-usa.com
mayra1990
51.739300408E12 11/02/2025
I like how this feels on my scalp
[This review was collected as part of a promotion.] Not sure yet if it’s working but I love how it feels on my scalp .
Originally posted on kerastase-usa.com
Vilma25
51.739291414E12 11/02/2025
great product
[This review was collected as part of a promotion.] Strengthens roots and reduces hair fall over time. Excellent product
Originally posted on kerastase-usa.com
Maferardon13
51.739331909E12 11/02/2025
Love it
[This review was collected as part of a promotion.] Love it, seen different after 2 weeks of using it !
Originally posted on kerastase-usa.com
IAIAIA
51.739228405E12 10/02/2025
Great product
My hair isn’t falling out as much. And it smells amazing!
Originally posted on kerastase-usa.com
Helenmukhina
51.739301315E12 11/02/2025
Amazing serum - shiny ✨ hair and amazing scents ✨
I tried this serum for the first time - I felt in love!
It’s smells like very expensive perfume
And the quality of hair is so amazing after using it!
I really recommend it!
Originally posted on kerastase-usa.com
Anti-Breakage Fortifying Hair Serum 90ml
Kerastase - Genesis
Daily anti hair-fall fortifying serum for weakened hair, prone to falling. The serum improves hair resistance to minimize hair-fall and maximize beautiful hair.